:root {
 
            --accent-color: #1b5e20;
            --warning-color: #ff9800;
            --danger-color: #f44336;
            --info-color: #2196f3;
            --light-gray: #f8f9fa;
            --border-color: #e0e0e0;
            --text-color: #333;
            --text-muted: #666;
            --finance-color: #4caf50;
            --interest-color: #f44336;
            --principal-color: #2196f3;
            --extra-color: #ff9800;
        }.breadcrumb-item a,.breadcrumb-item.active{color:#333}
         .page-header {
            background: linear-gradient(135deg, rgba(200, 230, 201, 0.4) 0%, rgba(46, 125, 50, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(46, 125, 50, 0.2);
            position: relative;
            overflow: hidden;color:#333
        }
        .tool-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .form-control.invalid {
            border-color: var(--danger-color);
            box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.15);
        }
        .summary-card:hover {
            transform: translateY(-2px);
        }
        .highlight-card {
            border-left: 4px solid var(--primary-color);
            background-color: rgba(46, 125, 50, 0.05);
        }
        .savings-card {
            border-left: 4px solid var(--warning-color);
            background-color: rgba(255, 152, 0, 0.05);
        }
        .nav-tabs {
            border-bottom: 1px solid var(--border-color);
        }
        .nav-tabs .nav-tabs .nav-tabs .table-container {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            max-height: 500px;
            overflow-y: auto;
        }
        .amortization-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .amortization-table th {
            background-color: var(--light-gray);
            font-weight: 600;
            padding: 0.75rem;
            text-align: center;
            border-bottom: 2px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 10;
        }
        .amortization-table td {
            padding: 0.75rem;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }
        .amortization-table tr:hover {
            background-color: rgba(46, 125, 50, 0.05);
        }
        .amortization-table .payment-number {
            font-weight: 600;
            color: var(--primary-color);
        }
        .amortization-table .interest-cell {
            color: var(--interest-color);
            font-weight: 600;
        }
        .amortization-table .principal-cell {
            color: var(--principal-color);
            font-weight: 600;
        }
        .amortization-table .extra-cell {
            color: var(--extra-color);
            font-weight: 600;
        }
        .progress {
            height: 10px;
            border-radius: 5px;
            margin: 1rem 0;
        }
        .progress-bar-interest {
            background-color: var(--interest-color);
        }
        .progress-bar-principal {
            background-color: var(--principal-color);
        }
        .payment-breakdown {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin: 1.5rem 0;
        }
        .payment-donut {
            width: 150px;
            height: 150px;
            position: relative;
        }
        .payment-donut-inner {
            position: absolute;
            width: 100px;
            height: 100px;
            background: white;
            border-radius: 50%;
            top: 25px;
            left: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }
        .timeline {
            position: relative;
            margin: 2rem 0;
        }
        .timeline-item {
            display: flex;
            margin-bottom: 1.5rem;
            position: relative;
        }
        .timeline-item:before {
            content: "";
            position: absolute;
            left: 20px;
            top: 0;
            bottom: -1.5rem;
            width: 2px;
            background-color: var(--border-color);
        }
        .timeline-item:last-child:before {
            display: none;
        }
        .timeline-marker {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            z-index: 1;
            flex-shrink: 0;
        }
        .timeline-content {
            flex: 1;
            padding-bottom: 1.5rem;
        }
        .extra-payment-options {
            background-color: rgba(255, 152, 0, 0.05);
            border-radius: 6px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid var(--warning-color);
        }
        .advanced-options {
            background-color: rgba(33, 150, 243, 0.05);
            border-radius: 6px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid var(--info-color);
        }
        @media (max-width: 768px) {
            .payment-breakdown {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        .toast {
            background-color: white;
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            border-left: 4px solid var(--primary-color);
        }
        .toast.error {
            border-left-color: var(--danger-color);
        }
        .toast.success {
            border-left-color: var(--primary-color);
        }
        .toast.warning {
            border-left-color: var(--warning-color);
        }
        .comparison-card {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 1.5rem;
            transition: transform 0.3s ease;
        }
        .comparison-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .comparison-header {
            background-color: var(--light-gray);
            padding: 1rem;
            font-weight: 600;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-@media print {
            .no-print {
                display: none !important;
            }
            .amortization-table {
                font-size: 0.8rem;
            }
            }
        .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .loan-type-card {
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 1.5rem;
            cursor: pointer;
            transition: all 0.3s;
            margin-bottom: 1rem;
            height: 100%;
        }
        .loan-type-card:hover {
            border-color: var(--primary-color);
            background-color: rgba(46, 125, 50, 0.05);
        }
        .loan-type-card.active {
            border-color: var(--primary-color);
            background-color: rgba(46, 125, 50, 0.1);
        }
        .loan-type-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: rgba(46, 125, 50, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        @media (prefers-color-scheme: dark) {
            :root {
                --light-gray: #2d2d2d;
                --border-color: #444;
                --text-color: #f0f0f0;
                --text-muted: #aaa;
            }
            .tool-card, .summary-card, .comparison-card {
                background-color: #2d2d2d;
                border-color: var(--border-color);
            }
            }
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            flex-direction: column;
            color: white;
        }
        .validation-error {
            color: var(--danger-color);
            font-size: 0.875rem;
            margin-top: 0.25rem;
            display: none;
        }
        .validation-error.show {
            display: block;
        }
        .tooltip-custom {
            position: relative;
            display: inline-block;
            cursor: help;
        }
        .tooltip-custom .tooltip-text {
            visibility: hidden;
            width: 200px;
            background-color: #333;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 5px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.875rem;
        }
        .tooltip-custom:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb {
            background: #888;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #555;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(46, 125, 50, 0.1);
            color: var(--primary-color);
        }
        .export-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }